A Solid Sphere Starts from Rest and Rolls Down a Slope

question 65

Multiple Choice

A solid sphere starts from rest and rolls down a slope that is 5.1 m long.If its speed at the bottom of the slope is 4.3 m/s, what is the angle of the slope?

• A)10°
• B)15°
• C)20°
• D)30°
• E)cannot be calculated without knowing the mass and radius of the sphere

---

Definitions:

Comparative Advantage

A principle in economics that asserts a country's ability to produce a good at a lower opportunity cost compared to another country, fostering global trade efficiency.

Opportunity Cost

The cost of forgoing the next best alternative when making a decision, a fundamental concept in economics that emphasizes the potential benefits that are lost when choosing one option over another.

Comparative Advantage

The ability of a party to produce a particular good or service at a lower marginal and opportunity cost over another.

Specialize

The process of focusing effort and resources on a particular area of expertise or production to increase efficiency and output.